Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Synthesis: Assess Hazard and Vulnerability Prioritization for Texas Bridges and Tunnels https://rip.trb.org/View/2604498 Mon, 29 Sep 2025 16:02:19 GMT https://rip.trb.org/View/2604498 Engineering Feasibility Study of the Future Extension of the Eisenhower-Johnson Memorial Tunnel (UTI-UTC 12) https://rip.trb.org/View/2543321 Wed, 07 May 2025 18:53:43 GMT https://rip.trb.org/View/2543321 Fast Running Application for Evaluating Fire Resilience of Tunnel Systems (UTI-UTC 17) https://rip.trb.org/View/2543412 Wed, 07 May 2025 18:24:28 GMT https://rip.trb.org/View/2543412 Fire Resistance of Tunnel Surfaces (UTI-UTC 19) https://rip.trb.org/View/2543414 Wed, 07 May 2025 18:13:25 GMT https://rip.trb.org/View/2543414 Functional reliability of tunnels and its impact on transportation network resilience (UTI-UTC 21) https://rip.trb.org/View/2543416 Wed, 07 May 2025 18:05:02 GMT https://rip.trb.org/View/2543416 Probabilistic rock mass quality prediction model and its application to tunneling design (UTI-UTC 31) https://rip.trb.org/View/2543424 Wed, 07 May 2025 17:19:00 GMT https://rip.trb.org/View/2543424 Resilience and sustainability of underground transportation infrastructure (UTI-UTC 32) https://rip.trb.org/View/2543425 Wed, 07 May 2025 17:14:39 GMT https://rip.trb.org/View/2543425 Understanding cross passage ground-structure interaction using data from the Seattle Northgate Link transit extension project (UTI-UTC 39) https://rip.trb.org/View/2543429 Wed, 07 May 2025 16:51:41 GMT https://rip.trb.org/View/2543429 UTC-UTI Summer Tunnel Camps for Grade School Students (UTI-UTC 41) https://rip.trb.org/View/2543431 Wed, 07 May 2025 16:38:33 GMT https://rip.trb.org/View/2543431 Fire Resistance of Tunnel Surfaces (UTI-UTC 42) https://rip.trb.org/View/2543432 Wed, 07 May 2025 16:05:18 GMT https://rip.trb.org/View/2543432 Interaction of Mechanical Systems with Structurally Significant Fire Events (UTI-UTC 44) https://rip.trb.org/View/2543434 Wed, 07 May 2025 15:44:59 GMT https://rip.trb.org/View/2543434 Developing Guidelines for Daytime Lighting in Short Tunnels https://rip.trb.org/View/2508909 Tue, 11 Feb 2025 15:10:42 GMT https://rip.trb.org/View/2508909 Integrated FFFS-EVS Design Guidelines for Highway Tunnels https://rip.trb.org/View/2100884 Wed, 18 Jan 2023 11:17:30 GMT https://rip.trb.org/View/2100884 Visualization and demonstration of risk identification and evaluation for extreme events https://rip.trb.org/View/2096589 Fri, 13 Jan 2023 14:49:29 GMT https://rip.trb.org/View/2096589 Synthesis of Information Related to Highway Practices. Topic 54-19. Practices for Controlling Tunnel Leaks https://rip.trb.org/View/1953252 Wed, 18 May 2022 09:23:52 GMT https://rip.trb.org/View/1953252